40091864783 has 2 divisors, whose sum is σ = 40091864784. Its totient is φ = 40091864782.

The previous prime is 40091864777. The next prime is 40091864789. The reversal of 40091864783 is 38746819004.

It is a balanced prime because it is at equal distance from previous prime (40091864777) and next prime (40091864789).

It is a cyclic number.

It is not a de Polignac number, because 40091864783 - 2⁴ = 40091864767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40091864789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20045932391 + 20045932392.

It is an arithmetic number, because the mean of its divisors is an integer number (20045932392).

Almost surely, 2^40091864783 is an apocalyptic number.

40091864783 is a deficient number, since it is larger than the sum of its proper divisors (1).

40091864783 is an equidigital number, since it uses as much as digits as its factorization.

40091864783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 40091864783 in words is "forty billion, ninety-one million, eight hundred sixty-four thousand, seven hundred eighty-three".